Glassware forming machine



Oct. 23, 1934. I... D. SOUBIER I GLASSWARE FORMING MACHINE Original Filed Dec. 31, 1929 5 Sheets-Sheet l 3 QM mm 5 gwumtoz Oct. 23, 1934. L D, SQUBIER I 1,977,741

GLASSWARE FORMING MACHINE Original Filed Dec. 31, 1929 5 Sheets-Sheet 2 103 v gwventoc Original Filed Dec. 31, 1929 5 Sheets-Sheet 3 Oct. 23, 1934. L. D. SOUBIER GLASSWARE FORMING MACHINE Original Filed Dec. 31, 1929 5 Sheets-Sheet 4 Oct. 23, 1934. sou 1,977,741

GLASSWARB FORMING MACHINE ox iginal Filed Dec. 31, 1929 s Sheets-Sheet 5 UPPLY FOR AIR UNDER PRESSURE CONSTA AIR 95 HEAD M OTOR OPENS F-M.

CLOSES FIN.

37 OPENS E BLOW HEAD MOTOR 12.4

BLANK Ann uzcx noms MOT R OSCILLATES I EM. CARRIAGE CONSTANT ma PRESSURE.

Patented Oct. 23, 1934 UNITED STATES PATENT OFFICE Owens-Illinois Glass a corporation of Ohio Company, Toledo, Ohio.

Application December 31, 1929, Serial No. 417,876 Renewed April 16, .1934

18 Claims.

The present invention relates to improvements in glassware forming machines.

An important object of the invention is the provision of an improved type of machine of small 6 size, embo ying the feature of a single blank mold which forms and delivers blanks or parisons to a plurality of finishing molds. To this end the blank mold at regular time intervals places blanks at a transfer station and a pair of finishing molds are brought one at a time to this station, receive blanks and then move to final blowing and discharge stations in succession.

Another. object is the provision in a machine of the above character, of means for oscillating the finishing molds as a unit so that while one mold is positioned in the blank transfer station the other mold occupies the final blowing station, oscillation of the molds placing them alternately at said stations.

part pointed out hereinafter.

In the drawings:

Fig. 1 is a part sectional side elevation of the improved glassware forming machine.

Fig. 2 is a front elevational .view thereof.

Fig. 2A is a detail sectional view of a blow head.

Fig. 3 is a plan view.

Figs. 4, 5 and 6 are detail views showing the several successive positions occupied by the molds during gathering and transferring of a blank. Fig. 4 shows the blank mold in charge gathering position. Fig. 5 shows the blank mold retracted and opened, leaving the blank suspended from the neck mold. Fig. 6 shows the finishing mold closed about the blank, and both the neck and blank molds completely'open.

Fig. 7 is a detail sectional view showing the vacuum control means.

Fig. 8 is a diagrammatic view showing the system of air motors'for actuating the various mechanisms making up this machine, and the means for controlling operation of these air motors.

Fig. 9 is a detail sectional view showing the means allowing individual adjustment of the cams.

In more or less general terms, the illustrated embodiment of my glassware forming machine comprises a single blank forming unit which may obtain mold charges of molten ferred manner and transform them into blanks or parisons, which, at a blank transfer position, are placed in finishing molds. This blank forming unit may. and preferably does, consist of partible co-operating neck and blank molds. At the transfer position the blank mold opens, leaving a Other obiects'will be in part apparent and in glass in any prebare parison suspended from the neck mold. Immediately, a finishing mold closes about the bare parison preparatory to final expansion of the latter. The neck mold then opens, leaving the parison entirely supported in and by the finishing to mold. At this point, this finishing mold is moved in a horizontal plane to a final blowing position where the blank or parison is expanded to its final shape. During such movement of said finishing mold, the blank forming unit obtains another mold charge and carries it to the transfer posi ion where, in the form of a parison or blank, it is enclosed in a second finishing mold, the latter being brought to thetransfer position by movement of the first mold. The finishing 7o molds are then moved as a unitin a reverse direction and during such movement the finally shaped article in the first finishing mold is discharged so that the latter mold may receive another blank or parison when it again reaches the transfer position. In the present embodiment of the invention, the various operations and movements of the molds, etc. are obtained by air motors. Obviously, other means might well be employed in lieu of these motors. 39 More specifically, the illustrated embodiment of the machine comprises a blank mold unit 10 suitably supported on a frame 17 at the upper end of uprights 11 rising 'from a base 12. This blank mold unit 10 obtains mold charges at regular time intervals from a supply body 13 of molten glass 'in a tank 14 or furnace, which is provided with a gathering. opening 15 through whicha blank mold is alternately moved into and out of contact with the, glass. The blank mold unit in cludes a pair of co-operating blank and neck molds 20 and 21, respectively, mounted on a ram 16, the latter carried by a slide 18 supported in inclined slideways 19 in a-frame 17. The blank and neck molds are pivoted to a vertical hinge pin 22 depending from the outer end of the ram 16. Mechanism for opening and closing the blank and neck molds is so operated that the sections of the blank mold separate in advance of the opening of the neck mold. Such opening of the molds is necessary in order that the neck mold may remain closed a sufilcient period of time to support the blanks or parisons during closing of the finishing molds, as will be apparent hereinafter. Alternate opening and closing of the blank and neck molds is obtained by mechanism including a pair of arms 23 (Figs. 1, 2 and 3) connected through links 24 to rock arms 25 pivoted on a hinge pin 26 carried by the ram 16. One of these rockarms is connected to a push rod 27 extending lengthwise through the frame 17, which rod carries a cam roll 28 constantly engaging a rocker arm 29. This arm 29 is rocked atregular time intervals by an air motor 30 (Figs. 1 and 8) which includes a differential piston 30" to one side of which air under pressure is constantly supplied through a pipe 31 from the main supply pipe 32. Air underipressure is supplied intermittently to the opposite side of the piston 30 through a pipe 33 leading from the valve box 34, the latter connected through a pipe 35 to said main pipe 32. A valve- 36 (Fig. 8) regulates and controls the supply of air under pressure to the motor 30 and is.

opened at regular time intervals by a rotary cam 3'7 mounted on a continuously rotating cam drum 38 to which motion is imparted by a motor 39 or the like operating through gearing 40. I

A plunger 41 (Fig. 6) adapted to co-operate with the neck mold in forming blanks, is suitably secured to a plunger holder 42 mounted atone end of a lever 43, which in turn is pivoted to a horizontal hinge-pin 44-carried by the ram 16. The

' inner end of this lever 43 carries a cam roll 45 which periodically. engages a-stationary cam 46 :1 Mold charges are gathered into the blank mold of said' passagewaycommunicating with the neck andblank mold cavities (Fig. 4), while the'other endis formed with a port 16 leading to an annular channel-16 which constitutes part of vacuum control means. The innerend of the ram is formed integral withthe slide 18, the'latterhaving an opening 18*into which a vacuum supply pipe l8'tslidingly fits,: said-pipe 18 having'a port 18 or ports adapted for register'with the annular channel 16. Such registration is effected only while the blank mold 20 in contact with the glass or in close proximity thereto; Vacuum may be applied to the pipe 18'' in any preferred manners Charge severing means by which excess glass is severed from the gathered mold charges, comprises a vertically swinging knife 47 (Figs. 1. 4, 5

and 6) pivoted to the arm 16. This knife is con-' nected to operating mechanism through an arm 48, the latter pivoted to'a rod 49 which in turn is 'suitably' connected to a bell crank lever 50. This lever 50 is pivoted to the slide 18 which carries the ram 16 and has a cam roll 51 thereon adapted tov ride in a cam 52, the latter suitably secured to'a portion of the frame 17 and so shaped that whenlthe ram 16 is fully projected, the lever is positioned at one end of the cam to hold the knife as shown in Fig. 4. As the ram is retracted, the cam roll 51 rides up and then down through the inverted V shaped portion of the cam 52 so that'the bell crank lever is oscillated and imparts a corresponding movement of the knife 47. In-

. this manner, the knife is swung across the lower end of the blank mold at a predetermined point following initial retraction of the mold from-the gathering position and is then swung back to the inactive position (Fig; 5) prior to beginning of the blank transfer operation.

Re'ciprocationbf the blank and neck molds 20 and 21, respectively, along an inclined path between the charging and blank transfer positions is obtained by an air motor 53 (Figs. 1, 2, 3 and 8) mounted on the upper side of the frame 1'7 and operatively connected to the ram 16. The diiferential piston 54 is connected to aslide 55 and through this slide to a rack and gear mechanism 56, including a rack bar secured to the upper side of the slide, 18. Air under pressure 'is constantly supplied to the air, motor 53 through a pipe 5'7 leading fromthe main supply pipe 32.

A pipe 58 (Figs. 1 and 8) provides communication betweenthe air motor and thevalve box 34 referred to heretofore. Avalve 59'adapted to be actuated by therotary cam 60 at regular time intervals. regulates and controls the supply of air under pressure to the motor 53, in a manner to cause intermittent operation of the air motor and therefore alternate projection and retraction of the ram 16 at regular time intervals.

' The finishing mold mechanism includes a finishing'mold carriage 62 or'table arranged beneath the blank mold unit 16, said carriage mounted on a stationary pillar 63, about whichit oscillates at regular time intervals. A

partible-finishing mold 61' is arranged at each end of the carriage 62 (Figs. 1, 2 and 3), there "being provided carriers 64 individual to the flnishing molds providing for relative vertical movement'between the molds and carriage 62. Each finishing mold carrier 64, of which there are two in the present disclosure, is secured to the upper end of a slide 65 forming apart of the mold carrier and mounted for vertical reciprocation in a pair of slideways 66. Vertical reciprocation of the carrier 64'is obtained by means including a roller 6'7 suitably connected to the' lower end of the, slide '65 and adapted to be engaged by a crosshead 68 carried by an air motor 69, the latter arranged at the blank transfer position. This air motor is connected to the main supply line 32 through a pipe 69 and to a valve box 81 through a. pipe 69'. A valve 69 actuated at regular time intervals by a' rotary camv 69 controls intermittentflow-of- -air under pressure to the motor so that the latter operates inltimed'relation to movements of the remainingmechanisms. Downward movement of the finishing mold carriers 64 is limited by adjustable stops suitably secured to the sl-ideways 66.

.The finishing mold sections are connected through mold arms '70 to a vertical hinge pin 71 on the carrier 64- and thence through suitable -links"72 to a slide "73 which'is operated at regular time intervals to alternately open and close said' mold. This slide '73 is mounted in slideways '74 extending lengthwise of the carrier 64 and is provided with a cam roll '75, which, when the finishingmold is in final blowing position, is positioned in a. holder '76, the latter carried at the outer end of a piston rod 7'7 forming part of an air motor '78. One motor '78 is provided for each finishing mold. Air under pressure is constantly supplied to" one'end of the motor '78 through pipes '79 which are directly connected to the mainpipe line 32. Air under pressure is intermittently supplied to the other ends of the motors '78 through pipes 80 leading to the valve box 81 which is suitably connected to the main pipe line 32 through a'pipe 82. Valves 83, actuated by rotary cams 84, control andregulat'e supply of air under pressure to the motors '78. These cams 84' are mounted on a drum 38 which is continuously rotated by the motor 39.

Directly opposite the blank transfer position is 1 Thus, airunder pressure is suppliedqto the, O fQr arranged means for closing the finishing molds '81 about blanks or parisons suspended from the neck .on the central pillar and carrying-a. holder- 111 which at regular time intervals engages the rolls on the finishingmold slides 73. When a bare blank is in position to be enclosed in 'a finishing moldfil, the motor 110 is operated andcauses direction to close the mold. Actuation of thismoto. A supply pipe 113 connects the-motor llt i and tnevalve box 81, the latterhaving;;aj .valve;1 I opened periodically by means. of a rotary cam-1 15 110,. at regular time intervals, "to cause. movement of the holder 111 for'thepurpose'of closing; he finishingmolds.,-f The bottom plate 86 (Figs: 1; 3,.5and6) ispivoted to a horizontal hinge pin 87'ca-rrled by; the slide 65. A roller 88 on the lower side'ofthe bottom platerides Ona'track 89 (Figs; 2 'and-3) "in+ eluding a vertically movablesection90"which is, rigidly connected bymeans of an arm 91 to the crosshead 68, so that when the. crosshe'ad '68 is; moved vertically to raise or lower the finishing mold unit, corresponding movement is imparted to the bottom plate 86; This feature will be de-.

scribed in detail hereinafter.

vA blow head 92(Figs. 2, 2A and 3) is arranged "at each a of the final blowingjstations B and is adapted to be brought into operativeengag'ement with the upper end of a finishing mold at re'gular time intervals as part ,of the operation through which blanks or-parisons are expanded in the finishing mold; .Each blowhead 92 is in the form of an inverted cup securedto. theouter end of an arm 93 pivoted for vertical swinging movement uponthe upper end of a post 94, the latter rising vertically from the base 12. The arm 93 is rocked periodically for the purposel'of operatively and inoperatively positioning." the blow head 92 in alternation, such rocking motion being obtained by an air motor 95 mounted. on the post 94.and connected through a rod;96 to'a finger 97 on the blow head arm 93. Air under pressure is constantly supplied to one end of each air motor 95 through a pipe 98 leading to the main pipe-line 32 (Fig. 8) for the purpose of holding the blow head 92 out of contact with the'finishing mold. At regular time intervals, air under pressure is supplied to the other end, ofthe air motor 95 through a'pipe 99.- ,One of the pipes 99 leads tothe valve box 34 .(Fig. 8 while the other. pipe leads to the valve box 81, fiow 0! air through both of said pipes being controlled by valves 100. which are alternately opened and closed by rotary cams 101- carried. by the drum 38..

Each blow head 92 isconnected toany suitable source of supply of air under pressure through a flexible pipe102 which may'extend downwardly through-the post 94-, as shown; Air-:underpressure is automatically applied to the blanks or parisons' in the finishing molds upon seating of; ablow head on the corresponding .finishing mold'. This is obtained by meansoi a disc 103 arranged within a blow head and carried by *a valve rod 104. This valverod 104 extends upwardlythr'ough the tact with the blank in the finishing mold and moved upwardly against spring 105. movement of the holder -1'11 and slide 73. in-Ja ia jrotarykcamiiz'l opens the valve 126 any adjusted-position on the dru 'nIj By changing --the relative positions of the it is'obvious that the time intervals between "fl operationsfofthe motors will be changed "and cause. a corresponding change in the "operation of the other mechanism.

'59 operates toproJect-the ram-116 30 thatthe blow head and carries a coil spring-105 which 'n'ormally'holds the disc 103 inits lowermost position. While in this position, a passageway '106 through the valve rod is out of communication with the supply pipe 102; The passageway 106- is brought 80 Oscillation of the'lfinishin'g mold carriage 62 for the purpose of movingth'e finishing molds 61 tor 110, which includes a 'diflerentialpiston. (not shown), is obtained by. constantly supplying air under pressure to one side of :the piston through a pipe 112. This normally placesitheholder 111.v in its innermost position whereone 'of' -thezcam, rails '75. may move into operativerelationthere sleeve 'rotati'velysubported on thepillar63'.

under pressure-is constantly-supplied to one end :--'of themotor'l20jthrougha pipe 124, thereby nor} ima'llyfholding the carriage in one: -of;its extreme 'positions.; A ipjp'e connects the other end or heinotor' 120 tothe valvebox 34 whereina valve 12fi'isprovided to control flow of air to saidmotor.

on the-'drum38 periodically and therebyjpermitsjfiow of underpressure'to the motor; Thustthe motor is, operated at regular time intervals, causing oscillation of the finishing mold carriage; &-

wForthe purpose .of varying the timedfrelatio w e Operating periods or the -vancus-los mechanisms -each rotary cam 31's adjustably mounted on itsjdrum; The formed with grooves individual to the. cams. Screws 128 are employed to-secure theca'rns' in' drum (Fig.5 9);. is

cams on thedr'uins,

During operation of this machine, the'ficam" drum 38 (Figs. 2" and 8) is rotated cjontinuousl-y andthereby causes operation" of "the several air motors in a predetermined orderj The air niotor lower end of a blank mold dips intdthe supply body 13-:of molten glass, such projectionof the ram causing register of theports'16 18 (Figa'j'l) in the vacuum supplyline so that theair is exhausted" from the blank and ne'ckmolds 20 and 21, respectively. Suchoperation' fills the mold cavitieswith molten glass. Retraction 'o ram beyond apredetermined point shuts "011 application ofvacuumf to these molds and-places the latter in--' ablank @transferv position.- *The-1fishear '47 removes excess glass from the}'rno ld; charge asthe rambeginsflitsretractiveistroke; During-gatheringof the moldcharge; the finishing mold table 62 is moved in ahorizontalplane so that one of "the finishing molds 61'is' placed in w. the-blank transfer position directly opposite the opening 15 in the .tank. Simultaneously with,

or prior to, reaching the blank transfer position, the blank mold 20 is opened, leaving a ba re pari-y son suspended from the neck mold; qThefinish 14KB ing-mold, after it'has completed its =horizontal movement to the-transferstation. is raised a pre-i determined distance so that when it closes about the bare paris'on, itsupper end will contact with the lower side of the neck mold 21.;The, air motor'llO is nowoperated to close: thefinishing mold aboutthe parison; such closin'gmovement 3 being followed immediately byopening-of the, 1 neck mold 21.

Theram '16 will now'be again pro t I jeoted for-the purpose ofgathering another mold-1 0 charge, and during such operation, the finishing mold carriage 62 is moved so that the finishing mold 61, to which a blank has just been transferred, is carried to a position directly beneath one of the blow heads 92. Incidentally, such positioning of the finishing mold carries the cam roll '75 to a position within one of the holders 76 so that said mold is positively held closed during final expansion of the blank or parison. The air motor 95 is operated to move the blow head 92 into contact with the upper end of the finishing mold. As described above, the disc 103 (Fig. 2A), upon seating of the blow head on the finishing mold, moves upwardly and causes communication between ths passageway 106 and the pipe 102 so that air under pressure may be supplied to the finishing mold. Thus, the blanks are expanded to final shape. During such final expansion of the blank or parison, a blank is being transferred to the other finishing mold in the manner above described. Upon completion of final shaping of the blank, one of the motors 78 is operated to open a finishing mold, it being understood that prior to such opening, the blow head 92 has been swung upwardly away from the mold. This open finishing mold is now moved in a reverse direction toward the blank transfer position, while the other finishing mold moves away from the transfer position to the final blowing position 3" beneath the other blowing head 92. The bottom plate 86 supports the expanded article just freed from the finishing mold until the latter reaches the discharge position 0" between the blowing position B' and said blank transfer position. At this discha e position, the track 89 is shaped to allow the bottom plate 68 to tilt so that an article supported thereon is deposited in a chute 136 for delivery to a conveyor 137.

Modifications may be resorted to within the spirit and scope of the appended claims.

What I claim is:

1. In combination, a blank mold mounted for reciprocation along an inclined path between charging and blank transfer positions, means for moving the mold, means for delivering a mold charge of molten glass to the mold and transforming it into a blank priorto reaching the transfer position, a finishing .mold carriage mounted for oscillation in a horizontal plane below the transfer position, a finishing mold on said carriage, means for moving the carriage to thereby successively place the finishing mold in blank transfer, final blowing and article discharging positions, means for transferring a blank to the finishing mold at the transfer position, means for finally expanding the blank, and

means for discharging the expanded blank from the finishing mold.

2. In combination, a blank mold mounted for reciprocation along an inclined path between charging and blank transfer positions, means for moving the mold, means for delivering a mold charge of molten glass to the mold and transforming it into a blank prior to reaching the transfer position, a finishing mold carriage mounted for oscillation in a horizontal plane below the transfer position, a pair of horizontally spaced finishing molds on said carriage, means for oscillating the carriage to thereby cause one finishing mold to occupy the blank transfer position while the other finishing mold is in a blowing position, means for transferring blanksto the finishing molds at the transfer position, means for blowing the blanks to final shape, and

means for discharging finished articles from the finishing molds at a discharge station between blank transfer and blowing positions.

3. In combination, a blank mold mounted for reciprocation along an inclined path between charging and blank transfer positions, means for moving the mold, means for delivering a mold charge of molten glass to the mold and transforming it into a blank prior to reaching the transfer position, a finishing mold carriage mounted for oscillation in a horizontal plane below the transfer position, a pair of horizontally spaced finishing molds on said carriage, means for oscillating the carriage to thereby-cause one finishing mold to occupy the blank transfer position while the other finishing mold is in a blowing position, means for transferring blanks to the finishing molds at the transfer position, means for blowing the blanks to final shape, means for discharging finished articles from the finishing molds at a discharge station between blank transfer and blowing positions, and means for alternately raising and lowering the finishing mold at the transfer position to move said mold into and out of position to enclose a blank.

4. In a glassware forming machine, a bla forming unit comprising a partible blank mold and a' co-operating partible neck mold above and in register with the blank mold, said molds mounted for reciprocation along an inclined path between charging and blank transfer positions, means'for moving said unit, means for delivering mold charges of molten glass to the molds and transforming them into blanks prior to reaching the transfer position, a finishing mold carriage mounted for movement in a horizontal plane below the transfer position, a pair of partible finishing molds mounted on said carriage, means for moving said carriage to alternately place the finishing molds in blank transfer and final blowing positions, means for opening the blank mold at the transfer position and leaving a blank suspended from the neck mold, means for alternately raising and-lowering the finishing molds at the transfer position to move them into and out of contact with the neck mold, means for closing the finishing molds around the suspended blanks, means for opening the neck mold, means for blowing the blanks to their final shape in the blowing positions, and means for discharging the blown blanks from the finishing molds at discharge stations between the transfer and blowing positions.

5. In a glassware forming machine, a blank forming unit comprising partible co-operating blank and neck molds mounted for reciprocation along an inclined path between charging and blank transfer positions, means for moving said unit, means for delivering mold charges of molten glass to the molds and transforming them into blanks prior to reaching the transfer position, a finishing mold carriage mounted for movement in a horizontal plane below the transfer position, a pair of partible finishing molds mounted on said carriage, means for moving said carriage to alternately place the finishing molds in blank transfer and final blowing positions, means for opening the blank mold at the transfer position, means for alternately raising and lowering the finishing molds at the transfer position to move them into and outof contact with the neck mold, means for opening the neck mold, means for closing the finishing molds, means for blowing the blanks to their final shape in the blowing positions, means for discharging the blown blanks from the finishing molds at discharge stations between the transfer and blowing positions, said means for raising and lowering the finishing molds comprising a vertically movable track, an air motorfor alternately raising and lowering the track, and means operating in timed relation to movements of the blank forming unit and the finishing molds for actuating the air motor.

6. In combination, a blank forming unit comprising a blank mold, means for delivering mold charges of molten glass to the mold and transforming them into blanks, a finishing mold carriage arranged below the blank forming unit and movable in a horizontal plane, a pair of partible finishing molds spaced apart horizontally on said carriage, means for oscillating the carriage to alternately place the finishing molds in blank transfer and final blowing positions, means for transferring blanks to the finishing molds at the transfer position, means for supplying blowing air to the finishing molds at the blowing positions, and means for opening the finishing molds at discharge stations individual to the finishing molds between the transfer and final blowing positions.

7. In a glassware forming machine, the combination of a finishing mold carriage mounted for oscillation in a horizontal plane, a partible finishing mold thereon, means for oscillating the mold carriage to alternately place the finishing mold in blank transfer and final blowing positions, means for forming blanks and transferring them to the finishing mold at the transfer position, means for expanding the blanks in said mold at the final blowing position, and means for discharging finished articles from the mold between said positions.

8. In a glassware forming machine, the combination of a finishing mold carriage mounted for oscillation in a horizontal plane, a finishing mold carrier mounted for vertical movement on said carriage, a partible finishing mold on said carrier, means for oscillating the mold carriage to thereby alternately place the finishing mold in blank transfer and final blowing positions, means including a partible neck mold for forming and transferring blanks to the finishing mold, means for alternately raising and lowering the finishing mold carrier at the transfer position to cause op erative engagement between the finishing mold and neck mold, means for finally expanding the blanks at the blowing position, and means for discharging the expanded blanks at a discharge station between said positions.

9. In a glassware forming machine, a finishing mold carriage mounted for oscillation in a horizontal plane, a pair of vertically movable finishing mold carriers mounted on said carriage, means for oscillating said carriage to thereby move the finishing molds one at a time to a blank transfer position, said movement placing one mold in a final blowing position while the other occupies the blank transfer position, means including a partible neck mold for forming blanks and transferring them to the finishing molds at the transfer position, means for alternately raising and lowering the carriers at the transfer position to cause operative engagement between the finishing molds and neck mold, means for closing the finishing molds at the transfer position, means for expanding the blanks to the form of finished articles at the blowing positions, and means for discharging the articles during movemmit of the finishing molds to the transfer position 10, In a glassware forming machine, a finishing mold carriage mounted for oscillation in a horizontal plane, a pair of vertically movable finishing mold carriers mounted on said carriage, means for oscillating said carriage to thereby move the finishing molds one ata time to a blank transfer position, said movement placing one mold in a final blowing position while the other occupies the blank transfer position, means including a partible neck mold for forming blanks and transferring them to the finishing molds at the transfer position, means common to both finishing molds for alternately raising and lowering the carriers at the transfer position to thereby cause operative engagement between the finishing molds and neck mold, means for closing the finishing molds about the blanks, means for then opening the neck mold, means for expanding the blanks to the shape of finished articles at the blowing positions, and means for discharging the finished articles.

11. In a glassware forming machine, the combination of a finishing mold carriage mounted for oscillation in a horizontal plane, a pair of finishing molds thereon, means including an air motor for oscillating the carriage to thereby place the finishing molds one at a time in blank transfer and blowing positions in alternation, means for forming and transferring blanks to the finishing molds at said transfer position, means for expanding the blanks at the blowing positions,

means for opening the finishing molds at said blowing positions, and means for discharging finished articles from the molds during movement of the latter to the blank transfer position.

12. The combination of a mold carriage, finishing molds thereon, means for oscillating the carriage about a vertical axis and thereby moving the molds to a transfer station, a non-rotating carrier, a parison mold thereon, means for reciprocating the carrier in a direction transverse to that in which the finishing molds approach the transfer stationand thereby reciprocating the parison mold between a charge receiving position and the transfer station, and means for transferring parisons from the parison mold to the finishing molds.

13. In a machine for forming glass articles, the combination of a mold carriage, means for causing the mold carriage to travel intermittently, a can'ier thereon, a mold supported on said carrier, a mold bottom mounted on said carrier for up and down movement to and from the mold, a stationary cam controlling the up and down movements of the mold bottom during the travel of the mold carriage, said cam comprising a section movable up and down, means for moving said carrier upward on the mold carriage and thereby lifting the mold while the mold carriage is at rest, and means for causing said cam section to move upward with said carrier and thereby cause the mold bottom to move up with the mold whilethe carriage is at rest.

14. In a machine for forming glass articles, the combination of an intermittently traveling mold carriage, a mold thereon, a mold bottom on said carriage movable toward and from the mold, a stationary cam controlling said movements of the mold bottom, said cam including a movable section, means for moving the mold up and down on the carriage while the latter is at rest, and means for moving said cam section up and down with the mold.

15. In a machine for forming glass articles, the combination of a blank forming unit comprising a partible blank mold'and a partible' neck mold above and in register with the blank mold, a carrier on which said molds are mounted, means for reciprocating the "carrier along an inclined path between a mold charging position and a blank transfer position, means for delivering mold charges of molten glass to the molds at said charging position, means cooperating with the molds for transforming the charges of glass into blanks prior to reaching the transfer position, a finishing 'mold carriage, a pair of partible finishing molds mounted on said carriage, means for oscillating said carriage horizontally and thereby moving each finishing mold alternately to the blank transfer and final blowing positions, means for opening the blank mold at the transfer-position and thereby leaving aparison suspended from the neck mold, means for raising and lowering each finishing mold at the transfer position to move it into and out of engagement with the neck mold, means for closing each finishing mold about a parison suspended from the neck mold while the finishing mold is in said lifted position, means for opening the neck mold, and means for blowing the parisonsto their final shape in the finishing molds.

- 16. In a glassware forming machine, the com bination of a finishing mold carriage mounted for oscillation in a horizontal plane, a partible finishing mold thereon, means for oscillating the mold carriage to alternately place the finishing mold in blank transfer and final blowing positions, a ram, a blank mold carried thereby, means for reciprocating the ram in an inclined direction and thereby moving the blank mold from a charge receiving position to said transfer position, means for forming blanks in the blank mold and transferring them to the finishing mold at the transfer position, means for expanding the blanks in said finishing mold at the final blowing position, and means for then opening the mold.

LEONARD D. SOUBIER. 

